Discussion:
20MT no lift power

We just got a 20MT here on trade in. Lift speed is normal when unloaded but will not lift any weight. My first thought seal bypass, but can't see anything returning from the cylinder tops to the tank. TIA
  • Posted 21 Jan 2023 11:03
  • By CryerChris
  • joined 21 Jan'23 - 4 messages
  • British Columbia, Canada
Showing items 1 - 7 of 7 results.
Pump max pressure is 300psi. I wonder if there is a kit available for the pump?

https://imgur.com/a/OsW86qP
  • Posted 27 Jan 2023 08:54
  • Modified 27 Jan 2023 08:54 by poster
  • By CryerChris
  • joined 21 Jan'23 - 4 messages
  • British Columbia, Canada
Forks go up no problem, just not under load
  • Posted 27 Jan 2023 05:40
  • By CryerChris
  • joined 21 Jan'23 - 4 messages
  • British Columbia, Canada
Removed
  • Posted 26 Jan 2023 23:47
  • Modified 26 Jan 2023 23:49 by poster
  • By CR500R
  • joined 24 Jan'15 - 15 messages
  • Indiana, United States
Removed
  • Posted 26 Jan 2023 16:49
  • Modified 27 Jan 2023 05:47 by poster
  • By ron_k
  • joined 2 Apr'15 - 124 messages
  • North Dakota, United States
4kliftman
Looks like low pressure from the pump or bypass valve. It lifts about 200lbs max then it sounds like the pump goes into bypass. I assume the bypass valve is internal?
  • Posted 26 Jan 2023 10:33
  • Modified 26 Jan 2023 11:18 by poster
  • By CryerChris
  • joined 21 Jan'23 - 4 messages
  • British Columbia, Canada
Your going way back in time with a 20MT.
Always easy first check the battery voltage drop, those are not like the newer lifts that cut off with a bad battery.

If I remember right you should have 4 batteries 2 for the lift and 2 for the travel.

EDIT if the travel 2 batteries are good then it would travel fine even when your trying to lift a heavy load if the 2 lift batteries have a big volt drop under load then it would make it struggle lifting a load.
  • Posted 23 Jan 2023 00:54
  • Modified 23 Jan 2023 01:00 by poster
  • By Zerk
  • joined 21 Apr'16 - 28 messages
  • Arkansas, United States
Install a gauge in the main lift line to the lift cylinder and check the pressure that will tell if the pump has a problem.
  • Posted 22 Jan 2023 11:20
  • By Scott_
  • joined 16 May'21 - 318 messages
  • Pennsylvania, United States
Scott

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Movers & Shakers
Sue Tomic Sue Tomic
Board chair, Australian Supply Chain & Logistics Association (ASCLA)
Strategic business development manager, Heli Materials Handling Oceania
Chief executive officer, Hire Industry Association of New Zealand (HIANZ)
Chief executive officer, Australian Supply Chain & Logistics Association (ASCLA)
Latest job alerts …
UN Forklift FGL35T
HANGZHOU, Zhejiang, China
New - Sale
UN Forklift FB25N1LZ1
HANGZHOU, Zhejiang, China
New - Sale

PREMIUM business

VETTER Forks, Inc.
The world's most comprehensive product range as well as the most intelligent sensor fork for more safety and efficiency.
Fact of the week
According to studies published in the English Journal of Medicine, the impact of daylight savings is revealed by a 24% increase in heart attacks on the Monday following the spring shift forward. When clocks move back in autumn, heart attacks drop by about 21%, suggesting that loss of sleep is an important driver.
UN Forklift FGL35T
HANGZHOU, Zhejiang, China
New - Sale
UN Forklift FB25N1LZ1
HANGZHOU, Zhejiang, China
New - Sale
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY